MIPdatabase
Authors: Sun H, Lai JP, Fung YS
Article Title: Simultaneous determination of gaseous and particulate carbonyls in air by coupling micellar electrokinetic capillary chromatography with molecular imprinting solid-phase extraction.
Publication date: 2014
Journal: Journal of Chromatography A
Volume: 1358
Page numbers: 303-308.
DOI: 10.1016/j.chroma.2014.06.101
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0021967314010462
Abstract: A novel method coupling molecular imprinting solid-phase extraction (MISPE) and micellar electrokinetic capillary chromatography (MEKC) was developed to enable the hourly determination of low level of ambient carbonyls, and study their partition between gaseous phase and particulate phase. With 2,4-dinitroaniline (DNAN) as dummy imprinting template, the unreacted 2,4-Dinitrophenylhydrazine (DNPH) in sampling solution could be removed effectively using MISPE, and an average recovery of 97 ± 5.3% (n = 5) for the carbonyl-DNPH derivatives was achieved. Owing to the high enrichment due to sample clean-up, and the improvement of MEKC separation efficiency, many low abundant carbonyls could be detected by hourly in the field study
Template and target information: 2,4-dinitroaniline, DNAN, dummy template, 2,4-Dinitrophenylhydrazine, DNPH
Author keywords: Micellar electrokinetic capillary chromatography, Molecular imprinting solid-phase extraction, Atmospheric carbonyls, 2,4-Dinitrophenylhydrazine
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